baber/WOPTO huggingface dataset:
Patent CA-2237057-C (CA)
Title: Fluid metering apparatus and method
Inventor: TITUS JOHN S
IPC: G05D16/20
Filed: 1996-11-26
Granted: 2004-02-17
Abstract: An apparatus and method for metering fluid flow is disclosed. A fluid dispensing unit (30) is coupled between a supply pipe (28) and a demand pipe (32), and dispenses fluid received from the supply pipe (2 8) to the demand pipe (32). The demand pipe (32) is coupled to one or more fluid-expending appliances. The pressure of the fluid in the demand pipe (32) is monitored by a fluid information unit (34). The fluid information unit (34) and fluid dispensing unit (30) coopera te to maintain the fluid flowing through the demand pipe (32) at a substantially constant demand fluid pressure by monitoring fluid flowin g through the demand pipe (32) and actively dispensing fluid received from the supply pipe (28) into the demand pipe (32) to maintain the demand fluid pressure at a pre-established demand pressure level. The fluid information unit (34) and fluid dispensing unit (30) also cooperate to meter or measure the volume of fluid dispensed through the fluid dispensing unit (30).
Patent CA-2240773-C (CA)
Title: Laser drilling processes for making fabric and film forming devices
Inventor: BREITKOPF STEPHEN
IPC: B23K26/382
Filed: 1996-02-22
Granted: 2006-09-12
Abstract: Support members and method of forming support members for use in producing nonwoven fabrics, especially tricot-like nonwoven fabrics, and films. A topographical support member includes a body having a top surface comprising a pattern of a plurality of peaks and valleys and a plurality of apertures. The apertures have a conical top portion that is surrounded by a cluster of the peaks and valleys. The center line to center line spacing of adjacent apertures is less than the major diameter of the conical top portion of the apertures. The topographical support member is formed in a defocused process by focusing a laser beam so that the focal point is below the top surface of a starting work-piece and drilling with the laser beam the predetermined pattern of tapered apertures. The pattern of tapered apertures forms the cluster of peaks and valleys surrounding each aperture on the top surface of the resulting support member. A smooth, flat surface support memb er is formed by focusing the laser beam at the top surface of the workpiece or by adjusting the center line to center line spacing of apertures formed by the defocused process so that no peaks or valleys result. A perforated film or nonwoven fabric can be formed using the smooth surface support member.
Patent CA-2241014-C (CA)
Title: Morphine derivatives with analgesic activity
Inventor: STIMMEDER DAGMAR
IPC: C07D519/00
Filed: 1996-12-20
Granted: 2006-03-14
Abstract: Morphine derivatives of formula (T), process for preparing them and their use as analgesics.
Patent CA-2244447-C (CA)
Inventor: MCNESTRY MARTIN
IPC: B65C9/26
Filed: 1998-09-17
Granted: 2006-11-21
Abstract: An apparatus for applying a label to an article comprising an applicator means having an applicator surface, means to establish a negative pressure at the applicator surface, a plurality of openings to the applicator surface, means to deliver. pressurised gas to the openings or a selected set of the openings, and wherein the applicator means comprises a label receiving member spaced from the applicator surface and comprising a plurality of apertures, means to feed a label onto the label receiving member at which the label is maintained by the negative pressure established at the applicator surface, and when the pressurised gas is delivered to the openings in the applicator surface, the gas passes into the space between the applicator surface and the label receiving member, and through the apertures therein to propel the label towards the article.
Patent CA-2246281-C (CA)
Inventor: NEUKERMANS ARMAND P
IPC: H04R25/00
Filed: 1997-02-14
Granted: 2006-04-25
Abstract: An improved fully implantable hearing aid (10) in a first aspect includes at least two microphones (28) to provide improved noise cancellation, and, with an array (132) of microphones (28), improved directivity. In a second aspect, the hearing aid (10) includes an improved microactuator (32') in which deflections of a pair of piezoelectric plates (68) are coupled by liquid (52') to a flexible diaphragm (44') for stimulating fluid (20a) within an inner ear (17) of a subject (12).  In a third aspect, the improved hearing aid (10) includes a directional booster (200) that the subject (12), having an implanted hearing aid (10), may wear on their head (122) for increasing directivity of perceived sound. A fourth aspect of the present invention is an improved implantable microactuator (32", 32"') that generates a mechanical displacement of a diaphragm (82) or a face (96) in response to an applied electrical signal. A liquid coupling between the piezoelectric transducer (54", 54''') and the diaphragm (82) or face (96) provides a mechanical impedance match for the transducer (54", 54''').
Patent CA-2251514-C (CA)
Inventor: NARDI JOHN ANTHONY
IPC: B02C23/12
Filed: 1997-01-23
Granted: 2004-03-30
Abstract: An improved vane of the type adapted for use in the classifier cafe of a bowl mill type coal pulverizer. The improved vane is designed such that its lower end extends below the classifier cage inlet when the vane is mounted in the inlet.  In a preferred form, the vane has a generally trapezoidal shape with a loner lower edge. The vane is additionally bent or curved over a major portion to direct coal tangentially toward the surface of the classifier cone.
Patent CA-2251702-C (CA)
Title: Biologically active composition
Inventor: LINDAHL AKE
IPC: A61K9/00
Filed: 1997-04-29
Granted: 2007-01-09
Abstract: A biologically active stick composition comprising a biologically active age nt dissolved in a carrier system including an unsaturated fatty acid alcohol in mutual dissolution with an alkylene glycol as a solven t for said biologically active agent and a stiffening agent therefor, said stiffening agent imparting stick consistency to the composition, said alkylene glycol preferably being present in an amount of more than 12%. The composition can be prepared by dissolving the active agent in the solvent, combining the solution with the stiffening agent and shaping the formulation into a stick. The composition is especially intended for use as a medicament, preferably in the treatment of dermatological conditions, where it has been found to possess outstanding bioavailability properties.
Patent CA-2252440-C (CA)
Title: Device for setting the length of a top link of an attaching device of a tractor
Inventor: COENEN HERBERT
IPC: A01B63/114
Filed: 1998-10-29
Granted: 2002-04-09
Abstract: The invention relates to 2 device for settin~ .he length of a top link of an attaching aevice of a trac~or, with there being provided a piston/cylinder unit 14 for length setting purposes. The piston/cylinder unit 14 is pro~ided with  a  displacement  sensor  20  which  records  the respective actual length setting of the top link 7 and generates a a~tual length signal which is pro?ortional thereto.  Furthermore,  there is provided a lift position sen~or 13 which generates an electric signa~ representing the re~pective actual lift position of the lower steering arms 4. A no~inal length setting of the top link 7, which re~ers to the respective actual  lift position,  can be stored in the stoxage unit 33. When a new actual lift position  is  reached  ~u~ing  the  automatic mode of operation,    it  is  possible  to  generate  an  electric control signal which corresponds to the nominel length setting of the top link and which is transmitted to the comparator of a control unit 34. Said comparator compares the  control  signal  with the  actual  length  si~nal  and controls the piston/cylindex unit 14 as a ~unctio~ of the deviation o~ the  signals  from one  another,  towards  a nominal  length  settin~.  In  this  way  it  is  possible, auto~atically,  to  achie~e  optimum  kinematics  for  an implement attached to the tractor,  without any outside interference.
Patent CA-2256234-C (CA)
Title: A method for utilizing the postal service address as an object in an object oriented environment
Inventor: GARDNER DAVID P
IPC: G07B17/00
Filed: 1998-12-15
Granted: 2002-04-23
Abstract: The invention is a method and system for creating an address object, in an object oriented development environment of a data processing system. The addressobject is utilized during the creation of a document within a data processing system. The method includes both the object creation environment and the method of object utilization. The method establishes an object creation function within the data processing system, and then instantiates the address object by registering an object class within the object creation function, and then naming the class. Instantiation of the object establishes a programming interface to the address object. The properties of the address object are established by placing a set of object methods such asstorage instructions, display instructions, and, printing instructions, together with: postal coding functionality; address manipulation functionality; a set of addressing data tables; and, a human interface within the address object by utilizing the established programming interface. The system user invokes the address object which causes the system to perform postal coding and address manipulation on theaddress field under control of the address object. The system establishes and utilizes the address object by employing data processing means for manipulating data; memory means for storing a plurality of data tables for use by the data processing means; input means for inputting data to the system; and, output means for outputting data from the system.
Patent CA-2258542-C (CA)
Inventor: WYCLIFFE PAUL
IPC: C22F1/00
Filed: 1997-07-02
Granted: 2002-09-17
Abstract: A process of manufacturing aluminum can body stock involving the following steps. A molten aluminum alloy is prepared, the alloy containing Mg in the range 1.1 to 1.5 % by weight, Mn in the range 0.4 to 0.9 % by weight, Cu in the range 0.2 to 0.4 % by weight, Fe in the range 0.2 to 0.7 % by weight, Si  in the range 0.07 to 0.3 % by weight, all other elements each less than 0.05  % by weight to a maximum of 0.2 % for all other elements. The alloy is cast in  a continuous strip casting process to produce a slab having a thickness of at least 9 mm. The slab is rolled using at least 83 % reduction to produce a re - roll strip. The re-roll strip is coiled to form a coil and the coil to cool is allowed to cool naturally. The re-roll strip is then annealed and cold rolle d to a final gauge of between 0.26 and 0.4 mm, using a reduction of between 75  and 85 %, with no interanneal. The resulting strip can be used as can body stock having a 45 degree earing of less than 3 % and a yield strength after stoving of at least 265 MPa (38.5 ksi).
Patent CA-2262599-C (CA)
Title: Process and reactor for carrying out an exothermic reaction
Inventor: SENDEN MATHIJS MARIA GERARDUS
IPC: B01J8/18
Filed: 1997-08-07
Granted: 2005-11-22
Abstract: The present invention relates to a process for carrying out an exothermic reaction in the presence of a solid catalyst in a three-phase slurry reactor (1) comprising a slung zone (3) and a freeboard zone (5), in which slurry zone (3) the catalyst is kept in suspension in a slurry liquid, and in which freeboard zone (5) a liquid reflux is maintained to remove catalyst from the freeboard zone and, preferably, recycling the catalyst to the slurry zone (3). According to a further aspect, the present invention relates to a three-phase slurry reactor (1) adapted to the process, in particular a three-phase slung reactor (1) wherein the freeboard zone (5) contains means to trap catalyst particles (10).
Patent CA-2270253-C (CA)
Inventor: WOOD CHARLES W
IPC: F16J15/18
Filed: 1997-10-22
Granted: 2006-08-22
Abstract: A fluid control valve includes a valve bonnet (30) and a packing nut (56) threadably engaging the valve bonnet. A valve stem (26) passes through the valve bonnet and the packing nut in a clearance fit so that there is no engagement therebetween. Two packing sets of V-type PTFE packing (38, 40) are included with each set having a middle virgin PTFE sealing ring (42), a carbon or glass filled PTFE male packing ring (46) on one side and a carbon or glass filled PTFE female ring (44) on the other side. Belleville disk springs (52) are provided intermediate the packing nut and the two packing sets, for supplying live loading to the packing. In an unloaded condition, initially the pack-ing sets both are in a clearance fit with the valve stem. Threadably inserting the packing nut into the valve bonnet until there are no visible threads at the top of the bonnet ensures a sufficient loading to seal the valve stem, seals the inside diameter of the bonnet, and provides a sufficient stem guidance.
Patent CA-2270577-C (CA)
Inventor: HUGUENIN DENIS
IPC: C09K11/08
Filed: 1997-10-28
Granted: 2002-07-30
Abstract: The invention concerns a compound with a base of an alkaline-earth, sulphur and aluminium, gallium or indium, method for preparing same and use as luminophore. The compound is of formula AB¿2?S¿4? in which A represents an alkaline-earth, B aluminium, gallium or indium, and it is characterised in that it is in the form of a powder residual content of oxygen not more than 1.5 % and consists of particles of average size not more than 10µm. This compound is obtained by a method consisting in the following steps: forming a solution or a suspension containing salts of elements A and B, drying the solution or suspension by pulverisation; reacting the product obtained from the preceding step with carbon disulphide or with a mixture of hydrogen sulphide and carbon disulphide. The compound can be used as luminophore, in particular in cathodoluminescence.
Patent CA-2275132-C (CA)
Title: Universal compatibility software system for services in communications and information processing networks
Inventor: DEANS GORDON MATTHEW
IPC: H04M3/00
Filed: 1997-11-25
Granted: 2005-01-25
Abstract: A method to control feature interaction and ensure compatibility among disparate service features, resources and terminals of a communications network is provided. Resource devices and terminals access a compatibility message bus via interface agent modules when originating requests or events. The message bus, which could be, for example, an Ethernet link of any length, is accessible to all devices and to one or more compatibility controllers in the computing platform of a PBX or switching office, or in a general computing platform separate from the switch or PBX. A temporary compatibility control module is then constituted, which processes requests and events, by retrieving processing rules stored in a data base to ensure provision of invoked service features in a controlled manner.
Patent CA-2277991-C (CA)
Inventor: TONO MASAKI
IPC: B32B13/14
Filed: 1997-06-30
Granted: 2006-04-25
Abstract: A fire-resistant sheetlike molding which is flame-retardant, can develop excellent fire resistance by virtue of satisfactory shape retention of the residue after combustion, and has excellent workability; a fire-resistant laminate for covering: steel and a fire-resistant structure for a wall made using the same; and a method for constructing a fire-resistant steel and a fire-resistant wall. The sheetlike molding is made from a resin composition and satisfies a requirement represented by the following formula: .DELTA.T >= 0.015t4 - 0.298t3 + 1.566t2 + 30.151t wherein t represents the intitial thickness, mm, and .DELTA.T represents the difference in temperature between the heated surface and the back surface when one surface is heated at 500 °C.
Patent CA-2282056-C (CA)
Inventor: YOOK STEVEN S
IPC: D21F7/10
Filed: 1999-08-30
Granted: 2004-08-17
Abstract: An on-machine-seamable multi-axial press fabric for a paper machine is made from a base fabric layer assembled by spirally winding a fabric strip in contiguous turns, and flattened to produce first and second fabric plies joined at folds at their widthwise edges. Crosswise yarns are removed at the folds at the widthwise edges to produce unbound sections of lengthwise yarns. A seaming element having seaming loops is disposed between the first and second fabric plies at each of the folds. The seaming loops extend outwardly between the unbound sections of the lengthwise yarns from between the first and second fabric plies. The first and second fabric plies are laminated to one another by needling staple fiber batt material therethrough. The press fabric is joined into endless form during installation on a paper machine by directing a pintle through the passage formed by the interdigitation of the seaming loops.
Patent CA-2287959-C (CA)
Title: Communication system for electronic messages
Inventor: LUDWIG REINER
IPC: H04L12/24
Filed: 1998-04-30
Granted: 2007-12-04
Abstract: Communication system for electronic messages with a plurality of data processing devices and a data network for a data transmission of electronic messages between two data processing devices. Data of an electronic message includes an assignment data block, besides, image data, text data, audio data and the like, which includes specific assignments between particular data segments of said image, text or audio data, such that with the assignment data block interrelations between particular segments of the message can be transmitted in a simple manner and can be used for a subsequent display or reproduction of the message.
Patent CA-2288502-C (CA)
Inventor: SIMONELLI JAMES K
IPC: B65G23/08
Filed: 1999-11-05
Granted: 2004-06-15
Abstract: ABSTRACT OF THE DISCLOSURE   A motorized conveyer pulley in which an electric motor is enclosed in a rotating cylinder having a cylindrical inner surface has permanently mounted on the inside surface a flexible sheet of magnetic material with sufficient surface to attract and retain ferrous particles for the anticipated life of the pulley. The drum contains a pool of oil (but is not filled with oil) and the flexible sheet is in direct contact with the oil, the oil having the ferrous particles introduced thereto in the course of operation of the drum.
Patent CA-2293640-C (CA)
Inventor: DUFFY ROBERT J
IPC: G16H40/63
Filed: 1998-06-09
Granted: 2010-09-28
Abstract: A modular patient care system (100) having a central management unit module, and one or more detachable functional units (104), is described. Using unique mechanical, and electrical features the modular patient care system is capable of flexibly, bilaterally, safely providing electrical power from the central management unit to the attached functional units with exposed power leads of end units being electrically isolated for safety, and security. Functional units are capable of detecting the presence of other functional units more distant from the central management unit for passing power to those units, and for otherwise electrically isolating exposed power leads when no further units are attached. The modular patient care system (100) provides for a modular connection arrangement wherein modules are detachably connected to each other in a convenient, flexible, interchangeable secured manner by providing a hinge connector pair, a specially located latch mechanims, and a guide means between any pair of modules.
Patent CA-2303082-C (CA)
Title: Improvements in a method of reclaiming styrene and other products from polystyrene based materials
Inventor: PONSFORD THOMAS E
IPC: C07C4/22
Filed: 1998-09-10
Granted: 2003-11-18
Abstract: A method of reclaiming styrene from polystyrene-containing materials wherein a solution of polystyrene from such materials in a solvent is heated in distillation equipment to depolymerize the polystyrene and produce a styrene fraction and a heavier fraction, the styrene fraction being separated from t he heavier fraction. Prior to heating, an inert gas is used to purge the distillation equipment of oxygen. The method preferably is carried out at th e lowest temperature which will achieve the desired rate of depolymerization.< /SDOAB>
Patent CA-2306816-C (CA)
Inventor: ARQUETTE DEMETRIOS JAMES G
IPC: A61K8/44
Filed: 1998-10-15
Granted: 2004-05-04
Abstract: L'invention concerne une composition émolliente comprenant: des esters de cire en partie saturés comprenant: IV. R<1>-COO-CH2-R<2> et/ou V. R<2>-COO-CH2-R<1>, au moins 10 % en poids d'esters d'alkyle comprenant: VI. R<1>-COO-R<4> et/ou VII. R<2>-COO-R<4> et au moins 10 % en poids d'alcools gras comprenant: VIII. R<1>CH2-OH et/ou IX. R<2>CH2-OH, R<4> comprenant un alkyle ou un autre groupe aliphatique, tel que CnH2n+1, n étant compris entre 1 et 12, R<1> comprenant CH3-(CH2)7-CH=CH-CH2-(CH2)x-, et R<2> comprenant CH3-(CH2)y, x représentant 6, 8, 10 et/ou 12 et y représentant 16, 18, 20 et/ou 22. Un procédé de production de l'émollient consiste: a) à prendre une composition comprenant de l'huile de jojoba et/ou de l'huile de jojoba hydrogénée, b) à ajouter un alcool, contenant par exemple 1 à 12 atomes de carbone, à cette composition, c) à effectuer une alcoolyse sur cette huile de jojoba mélangée à cet alcool pour produire un émollient, et d) à effectuer une interestérification des esters de cire résiduels.
Patent CA-2310060-C (CA)
Title: Apparatus to facilitate rail transit by motor vehicles
Inventor: SPATA STEPHEN C
IPC: B61C11/00
Filed: 1998-11-23
Granted: 2003-07-08
Abstract: An apparatus for facilitating the travel of a motor vehicle (2), designed for roadway travel, upon railways has the capacity to be towed to the rail site by the motor vehicle. The apparatus has a platform (12) having at least one rotatable axle of roadway tires (40) attached thereto. In the deployed position, the roadway wheels allow the apparatus to be towed similarly to a trailer. When the apparatus is properly positioned over a railroad crossing, the rotatable wheels are drawn back to a retraced position, the apparatus is lowered so that rail wheels, mounted to the platform, engage the rails exactly as other rail vehicles. A removable ramp (14) allows the motor vehicle to mount the platform. The wheels (5, 6) of the motor vehicle engage either one or two sets of rollers (51, 52) disposed upon the platform. After the motor vehicle is properly secured, the motor vehicle can be engaged to drive the rollers, with the power delivered to the rollers being transmitted to the train wheels to supply the necessary locomotion. To accommodate various motor vehicles of differing offsets between the driven axles (3, 4), the distance between the two sets of rollers may be adjusted, and each may receive rotational power from one axle of the vehicle and transmit that energy to one of the sets of train wheels of the apparatus to propel the apparatus down the railways, and thus either end of the apparatus may serve as the forward end of the apparatus when it is upon a railway.
Patent CA-2310418-C (CA)
Inventor: SABIN MICHAEL J
IPC: G09C1/00
Filed: 1998-11-04
Granted: 2002-10-22
Abstract: A system and method for performing multiplication and modular reduction of large integers. The system includes at least one large integer unit (21), each large integer unit having a multiplier (22), an adder (23), and a register (24). First and second multiplier inputs are applied to the multiplier, and first and second adder inputs are applied to the adder. One output of the multiplier is also applied to the adder. A plurality of large integer units may be connected into a large integer unit array (39) that includes a complementing gate (35) and a latching register (34). A second output of the multiplier is applied to the first adder input of a next large integer unit, with processing speed increasing as additional large integer units are added to the array.
Patent CA-2311854-C (CA)
Inventor: SNELL ERIC JEFFREY
IPC: A61D7/00
Filed: 2000-06-16
Granted: 2004-02-10
Abstract: An enclosure is provided having openings for entry rodents within the enclosure. There is arranged one or more applicators in the form of a suspended flexible web configured to contact rodents entering the chamber and having a chemical on the web for application to the rodents.